kernel-default from home:tiwai:kernel:4.18 project

需要 standard ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/home:tiwai:kernel:4.18/standard/home:tiwai:kernel:4.18.repo
zypper refresh
zypper install kernel-default

需要 PPC ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/home:tiwai:kernel:4.18/PPC/home:tiwai:kernel:4.18.repo
zypper refresh
zypper install kernel-default

需要 ARM ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/home:tiwai:kernel:4.18/ARM/home:tiwai:kernel:4.18.repo
zypper refresh
zypper install kernel-default